TWT Business

Your jobs,billed to the minute.

Software for trades and service companies: projects and hours, invoices, supplier invoices and receipts in one place.

Your team records its hours per project, in the browser or on the phone, and open hours become an invoice in one step. Supplier e-invoices arrive checked, receipts are photographed and read, and your catalogue fills every invoice line. In the browser, on the tablet and as an app.

  • 30 days to test
  • Cancel monthly
  • E-invoicing included
  • Hosted in Germany

23,00 € per month, net, plus VAT

30 days to test: cancel within them and you pay nothing; if you continue, the trial month is charged with the first month. Cancel monthly.The trial is available once per customer.

The TWT Business overview for Nordquell Haustechnik GmbH: two supplier invoices awaiting approval and one flagged by the intake, the latest supplier invoices, four active projects, and 66:00 hours worth €4,794.50 not yet invoiced.
The TWT Business app on a smartphone: two invoice drafts, ten issued invoices, seven customers, two supplier invoices waiting for approval, and the way to invoices, supplier invoices, the receipt scanner and time tracking.Time tracking in the TWT Business app: the clock ready to start, the hours of today and of this week, and the latest entry, three hours on Badsanierung 2. OG worth €216.00.Invoices in the TWT Business app: two drafts, then the issued invoices with number, customer, net amount and status.
  • Not yet invoiced66:00 · €4,794.50
  • Awaiting approval2 supplier invoices
  • Receipt read20840 · €23.80

Why TWT Business

Every hour billed, every supplier invoice checked, no paper left.

Every hour billed

Your team records its time per project and activity, and open hours become an invoice without anyone retyping them.

Supplier invoices under control

E-invoices arrive checked, go to the right person for approval and warn you when a supplier names a new bank account.

No paper left

Photograph a receipt, and it is read on our own servers, ready to check and export.

Features

Everything the daily work needs.

With TWT Business you run your projects, record hours, write invoices and e-invoices, check supplier invoices, keep your catalogue and turn paper into documents. All features clearly organised in one place.

Projects

  • Customer, hourly rate and budget per project
  • Budget used, in hours and in euros
  • Earned, invoiced and not yet invoiced
  • Internal projects without a customer

Time tracking

  • Start the clock on site, or enter hours by hand
  • Per person, project and activity
  • Hourly rate per project or activity
  • Billable or not, per activity

Invoices

  • Open hours invoiced in one step
  • E-invoices as XRechnung and ZUGFeRD
  • Payment terms with Skonto, and dunning
  • Numbered without gaps, locked once issued

Purchasing

  • Supplier invoices by e-mail or upload
  • Checked against EN 16931
  • Approval by the right person, with limits
  • A warning on a new bank account

Catalogue

  • Materials with article number and price
  • Services with unit and rate
  • Tax rate per item
  • Picked into every invoice line

Receipts

  • Photograph or upload a receipt
  • Edges found, fields read on our own servers
  • Checked before export
  • Export as ZUGFeRD or XRechnung
All 30 features in detail
  • DashboardDashboard

    What needs doing today and the figures behind it, cut to your package: invoices, supplier invoices awaiting approval, hours and projects, or the books. Plus a guided first-run checklist.

  • SalesInvoices

    Draft to finalized, line items with per-line VAT and UN/ECE units, signature capture, QR code, duplicate and bulk actions.

  • SalesE-Invoice

    E-invoices to the German standard: generate, convert, read and validate ZUGFeRD and XRechnung against EN 16931.

  • SalesCustomers

    Buyer master data including VAT ID, flowing straight into the e-invoice as BT-48.

  • SalesPayment Terms

    Agree your terms once and choose them on every document. Several discount levels — 3 % within 7 days, 2 % within 14, net 30 — with the deadlines and the amount to pay worked out for you.

  • SalesReminders

    Up to three reminder stages with their own deadlines and fees. Default interest under § 288 BGB — nine points over the base rate against a business, five against a private person, day-exact and calculated separately across each interest period. Plus the 40-euro flat charge where it is due.

  • PurchasingIncoming invoices

    Receive, check and approve your suppliers’ invoices — a photograph, a PDF or an XRechnung, all in the same inbox. Being able to receive them has been obligatory since 2025; issuing them only from 2027.

  • PurchasingSuppliers

    Your creditors with their account mapping and every bank account they have ever invoiced from — what makes the changed-IBAN warning possible.

  • ProjectsTime tracking

    Record hours with the timer while you work, or by hand afterwards. The rate comes automatically from the activity or the project and then stays on the entry, so a later price rise does not re-price weeks already worked. Open hours become an invoice at the press of a button.

  • ProjectsProjects

    What is being worked on, with its customer, rate and budget. The analysis shows per project what has been earned, what has been billed and — the figure that matters — what has not. Internal projects with no customer belong here too: not every hour is sellable, but every hour wants to be seen.

  • ProductsCatalog

    Products and services in one item master with unit, price, VAT rate, SKU and sector.

  • ProductsStock

    The quantity on hand per article with a minimum level and a storage location; what is below its level stands at the top.

  • ProductsStock movements

    Every change as an entry with date, quantity and reason: goods received, sold from the invoice, returned, corrected, counted.

  • ProductsInventory count

    Count, see the system quantity and the difference, complete — the stock is set to what was counted.

  • DocumentsScan

    Five-step wizard: capture, adjust, process, review, export — a photographed receipt becomes a compliant e-invoice.

  • DocumentsDocuments by email

    Your own address for supplier invoices. Hand it out, or forward your existing mailbox to it — what arrives is read, checked and approved like a document you uploaded. With a sender list, format and size limits, and a log that names the refused messages too, so no supplier is left sending into nothing.

  • DesignTemplates

    Template library — duplicate, publish, set a default, mark a company-neutral standard.

  • DesignEmail templates

    The covering note your invoice arrives with — in your words, not ours. A designer with formatting, colors, tables and placeholder chips, for eleven kinds of mail in German and English, with a signature and attachment rules. One template can serve several document types at once, individual customers can have their own, and each person can set a personal default. The preview shows what will be sent, the test mail sends it to you first, the history keeps every earlier state, and a misspelled placeholder is refused at save rather than printed at your customer. The send log records what actually went out — including what did not arrive.

  • AdministrationCompanies

    Full legal profile: register data, tax numbers, banking, branding and § 19 UStG small-business mode.

  • AdministrationUser Management

    Invitations, access levels, per-user permission overrides and ownership transfer.

  • AdministrationTax advisor

    Who, besides your own people, may reach your data. A practice asks, you decide, and you can withdraw the access at any time — your own users are untouched.

  • AdministrationImport data

    Switch without retyping: customers, suppliers, the catalogue and your open items from a CSV file, as sevdesk, Lexware Office, Papierkram and Excel export them. Semicolons, umlauts and German numbers are recognised and the columns map themselves — with a dry run first and all-or-nothing on the way in.

  • AdministrationNumbering

    Four independent number circles — invoices, quotations, order confirmations, delivery notes — each with prefix, format, padding and a yearly or monthly reset, with a live preview.

  • AdministrationTwo-factor requirement

    Whether a second factor stays voluntary, is required of everyone, or only of the access levels that can move money. Setting one up stays on each person’s own profile, and that page stays reachable so nobody is locked away from the requirement they have to meet.

  • AdministrationBilling

    Plan and single-module subscriptions paid by card — the payment itself switches the module on.

  • AdministrationTWT invoices

    Every invoice from TWT in one place, across all modules, with the payment status per module and each invoice as a PDF.

  • AdministrationCancellation

    Contract, end of term and cancellation in one place. Paid time stays usable to the end of the period, and the cancellation can be withdrawn until then.

  • AdministrationAudit Logs

    21 action types across 21 entity types, filterable and CSV-exportable, surviving deletion.

  • AdministrationSupport

    Help from inside the product: ask a question, attach a screenshot, read the answer in the same thread. Each person sees only their own requests.

  • AdministrationNotifications

    Where the product writes to: e-mail, Telegram or WhatsApp — one set for the company, and one of their own for each person. With a test message, so a wrong number is caught at once instead of staying silent.

How it works

From the first hour to the invoice

Real screens from TWT Business with example data: a heating and plumbing business in September, step by step.

Projects in the portal: four active jobs with their customer, the hours recorded against a budget, and the value not yet invoiced, €4,794.50 together.
Each project carries its customer, its hourly rate and its budget. The list shows what has been recorded and what has not been invoiced yet.

01 Projects

Every job with its hours and its value.

  • Budget in hours and in euros
  • Not yet invoiced, per project
  • Active, paused, completed or archived
The project Heizungstausch Haus 3 for Wohnbau Leinetal eG: 30:30 hours worth €2,196.00, 76 % of the budget of 40 hours used, by person and by activity.
Recorded, earned, invoiced and open, the budget used and the hours by person and by activity: the whole job on one page.

02 Project

What a job has earned, and where the hours went.

  • The budget used, in hours and in euros
  • Hours by person and by activity
  • Straight to the time entries behind it
Invoices in the portal: two drafts and ten issued invoices from July to September 2026, with customer, template, date, amount and status.
Open hours become invoice lines in one step, per project, activity or person, and every hour is invoiced exactly once.

03 Invoices

Invoices from your hours and your catalogue.

  • E-invoice as XRechnung or ZUGFeRD
  • Numbered without gaps, locked once issued
  • Payment terms with Skonto, and dunning
The catalogue: seven materials with article number and five services, each with unit, price and tax rate.
Articles with number, unit and price, services with their rate: picked into an invoice line, unit, price and tax rate come along.

04 Catalogue

Materials and services at your prices.

  • Products and services in one list
  • Unit and tax rate per item
  • Search by name or article number

Receipts

The receipt photographed, its edges found

Take a picture of a receipt or upload it. The scanner finds its edges, straightens it and reads it on our own servers.

The receipt scanner: a till receipt from a builders' merchant, photographed on a desk, its edges found and ready to be read.
  1. 01

    Hours

    Recorded per project, on site or in the office

  2. 02

    Invoice

    From open hours and the catalogue

  3. 03

    Purchasing

    Supplier invoices checked and approved

  4. 04

    Receipts

    Photographed and read

Who it is for

For businesses that sell their work by the hour and by the job.

  • Trades

    The fitters record their hours on site, and the office invoices them the same evening.

  • Service companies

    Every job with its hours, its rate and its customer, and the materials from the catalogue.

  • Agencies and consultants

    Hours per project and person, invoiced by activity.

  • Teams on the road

    The app records the time where the work happens, and photographs the receipt from the builders' merchant.

  • The office

    Supplier invoices checked, approved and filed, and every receipt in its place.

Requirements

E-invoicing and the rules for your documents in view.

TWT Business supports you with the requirements for invoices and receipts in Germany.

E-invoice receipt

Since 2025 every business in Germany must be able to receive e-invoices. XRechnung and ZUGFeRD arrive in your inbox, checked against EN 16931.

E-invoices you send

From 2027 businesses with more than €800,000 turnover must send e-invoices, from 2028 every business. TWT Business writes XRechnung and ZUGFeRD today.

Unchangeable once issued

An issued invoice is numbered without gaps and locked, as the GoBD require. A correction is a cancellation invoice with reference to the original, never a deletion.

Retention

Invoices and receipts must be kept for eight years since 2025 (§ 14b UStG, § 147 AO). In TWT Business an issued invoice stays as it was issued, and a supplier invoice keeps the original file it arrived as.

TWT Business provides functions for proper invoices and records. The tax obligations of your business remain yours; when in doubt, ask your tax adviser.

Devices

Your jobs, wherever they are.

TWT Business runs in your browser on every computer and tablet, and as a native app on Android.

  • Time tracking in the TWT Business app: the clock ready to start, the hours of today and of this week, and the latest entry, three hours on Badsanierung 2. OG worth €216.00.

    Smartphone

    The TWT Business app for Android: the clock for the job, invoices, supplier invoices and the receipt scanner on the move. The app for iPhone and iPad is in preparation.

  • The TWT Business overview in the browser on a tablet.

    Tablet

    In the browser, with the whole portal: the overview, projects and hours, and the supplier invoices.

  • A supplier invoice in the portal: HV-2026-1240 from Heiztechnik Vertrieb Nordhessen GmbH over €2,820.30, formally correct, with the intake's warning that it names a bank account not known for this supplier.

    Browser

    On your computer or laptop, with nothing to install.

Getting started

Ready in a few steps.

Sign up, enter your company and bring in your customers, suppliers and catalogue from a CSV file.

25 common payment terms and a standard invoice template are already set up.

If you have questions, our support team helps you personally.

Get started
  1. Sign upChoose TWT Business and test it for 30 days without obligation.
  2. Set upYour company, your projects and your catalogue.
  3. Get goingRecord the first hours and send the first invoice.

Pricing

One price for the daily work.

TWT Business

23,00 €net per month, plus VAT

  • No setup fee
Start with TWT BusinessCompare all packages →

Included

  • Projects and time tracking
  • Invoices and e-invoices
  • Supplier invoices with approval
  • Receipt scanner
  • Catalogue of materials and services
  • 30 days to test without obligation

TWT One

Need the books as well?

If you also write quotations, run recurring invoices, keep your journal and read your bank statement, TWT One brings everything together.

TWT Business is part of the TWT One ecosystem.

Discover TWT One →
  • Quotations
  • Recurring invoices
  • Bookkeeping
  • Banking
  • Reports
  • Designer

A closer look

For those who want to know exactly

The hours in detail, the receipt in the scanner, the supplier invoices and the rights of every single person.

Learn more

Time tracking and projects Bill hours, not just items

Anyone selling their work by the hour usually keeps the hours in a spreadsheet — and that spreadsheet is then really where the invoice comes from. Here the two belong together: recorded time becomes an invoice line without anybody retyping anything.

  • A timer for the work happening now, a typed entry for yesterday's
  • The rate from the activity or the project — and frozen after that
  • Open hours into an invoice, grouped by project, activity or person — every hour exactly once
Time tracking in the portal: twelve entries in September 2026 with project, activity, note, person, duration and value.
  • Hours in September66:00 · 2 fitters · 4 projects
  • Not yet invoiced€4,794.50 · ready for an invoice

Document Scan From paper receipt to e-invoice

Photograph or upload an invoice. The receipt edge is detected automatically, layout and fields are read, units are inferred from a German keyword dictionary, and gross/net totals are reconciled against the printed total — then exported as ZUGFeRD or XRechnung.

  • Runs on our own servers — not a third-party cloud OCR
  • HEIC, JPG and PNG, converted in the browser
  • Live EN 16931 completeness check before export
The receipt read: receipt 20840 of 8 September 2026 from Baumarkt am Leineufer with its address, ready to check against EN 16931 and export.
  • Read on our serversReceipt 20840 · Baumarkt am Leineufer
  • Checked before exportEN 16931, field by field

Incoming invoices The obligation that already applies

Being able to receive e-invoices has been obligatory for every German business since January 2025 — issuing them only from 2027. It is also the side the market handles worst. Here every arriving invoice is read, checked and approved before anybody pays it.

  • A photograph, a PDF and an XRechnung all reach the same inbox
  • Checked against the official rule set, with a readable result
  • A warning when a supplier suddenly names a different IBAN
Supplier invoices: eight e-invoices with number, date, due date, amount and status, one of them flagged by the intake.
  • New bank accountHV-2026-1240 · Heiztechnik Vertrieb Nordhessen
  • Valid e-invoices8 of 8 · EN 16931

Access Control A real ACL, not role labels

More than 130 permission keys, organised as a module → component → action tree. Every member starts with the rights of their role; on top of it you grant or withhold single rights for exactly that person, and a withheld right always wins.

  • One key gates the API, the menu and the route
  • Modules you cannot reach never ship their JavaScript
  • Changes apply on the user's very next navigation

Company Role: Power User· 54 from the role54/83

  • Projects and time tracking+1−17/10
    • List
    • Create− withheld
    • Edit
    • Delete
    • Time tracking
      • List
      • See everyone's
      • Create
      • Edit
      • Delete
      • Bill
  • User Management0/6
    • List
    • Invite
    • Edit
    • Remove
    • Teams
      • List
      • Manage
  • Invoices6/8
  • Incoming invoices5/8
  • Withheld for this personProjects and time tracking · Create
  • Granted to this personProjects and time tracking · Bill

FAQ

Frequently asked questions

How does my team record its hours?

On the phone with the TWT Business app, which starts a clock on site, or by hand in the browser. Each entry belongs to a project and an activity, and the hourly rate comes from the activity or the project.

How do hours become an invoice?

Choose the open hours of a customer, grouped by project, activity or person, and TWT Business writes the invoice lines. Every hour is invoiced exactly once and cannot be changed afterwards.

Can I send e-invoices?

Yes. Every invoice can be issued as XRechnung or ZUGFeRD according to EN 16931, the formats public authorities and businesses in Germany expect.

Can I receive e-invoices?

Yes. XRechnung and ZUGFeRD arrive by e-mail or upload in the supplier invoices, are checked against EN 16931 and go to the right person for approval.

What happens with paper receipts?

Photograph them with the app or upload them in the browser. The scanner finds the edges, reads the receipt on our own servers and checks it against EN 16931 before you export it as ZUGFeRD or XRechnung.

Can I see whether a project stays within budget?

Yes. Give a project a budget in hours or in euros, and its page shows how much of it is used, with the hours by person and by activity.

Does TWT Business include bookkeeping?

No. TWT Business covers the daily work from the hour to the invoice. The journal, bank matching and the VAT return are in TWT Accounting, and TWT One brings both together.

Can I test TWT Business before I pay?

Yes. You test it for 30 days: cancel within them and you pay nothing. If you continue, the trial month is charged together with the first month; after that you pay the monthly price, with no setup fee, and you can cancel monthly.

Ready for TWT Business?

30 days to test: cancel within them and you pay nothing. Then cancel monthly, with no setup fee. Your data stays on our own servers in Germany.