Invoicing software for freelancers and side-hustles

Simple invoicing for freelance and side work.

Create and send professional invoices, track hourly work when a job needs it, turn logged time straight into an invoice, record payments and expenses, and send client agreements for signing. Built for straightforward freelance work, not full accounting.

  • 7-day free trialno setup fee
  • £12/monthone plan
  • Every feature includeduse only what you need

No setup fee. Cancel anytime. Built and supported in the UK.

The main tools

More than an invoice generator. Much less than accounting software.

If you are doing a few client jobs, Word and spreadsheets soon become a pain. But that does not mean you need VAT returns, payroll, bank feeds and a bookkeeping system. Zinvoice gives you the client-work tools that usually end up scattered across different apps.

Create and send invoices

Save client details, create professional invoices, send PDFs or secure links, and see what is paid or outstanding.

See invoicing

Track billable time

Start a timer or add time afterwards, then turn eligible unbilled hours straight into an invoice.

See time tracking

Send agreements for signing

Upload your existing PDF, send it privately for electronic signature, and keep the signed copy with the client.

See agreements

Record payments and expenses

Record payments, expenses, receipts and mileage without turning Zinvoice into a bookkeeping system.

See payments & expenses

Use what the job needs

Track time, send agreements and handle regular client work when it comes up.

These tools are included in the same plan, but none is required before you can create and send an invoice.

Time tracking

Track the odd hourly job without another app.

Start the timer while you work or add the time afterwards. Keep the hours against the client and project, then turn eligible billable time straight into an invoice.

  • Timer or manual entry
  • Actual and billable time
  • Unbilled hours ready to invoice
  • Add tracked time straight to an invoice

Do not charge by the hour? Ignore it. Time tracking is optional.

See time tracking

Client agreements

Need a client to sign the odd agreement?

Upload the PDF you already use, send it privately for reading or electronic signature, and keep the completed copy with the client or project.

  • Upload your existing agreement PDF
  • Private client signing page
  • Dated signing activity
  • Completed PDF retained with the client

You provide the agreement wording. Zinvoice does not write contracts or provide legal advice.

See client agreements

Recurring invoices

Send the same invoice regularly?

Set up a recurring invoice schedule once, then have Zinvoice create a draft or send the invoice automatically on the dates you choose.

  • Choose the frequency and first date
  • Review a draft or send automatically
  • See upcoming invoice dates
  • Pause or change the schedule

Recurring invoices create invoice records; Zinvoice does not process subscription payments.

See recurring invoices

Client projects

Keep larger client jobs connected.

Use a project when a piece of work involves several hours, invoices or documents. See the project's time, invoices, payments and documents from the same client job.

  • Project time and unbilled hours
  • Invoices and recorded payments
  • Client documents and agreements
  • Projects are optional

Use a project for a job with a few moving parts, or invoice a client directly for simpler work.

See projects

Product fit

Made for straightforward freelance work.

Zinvoice suits people freelancing alongside a job, taking on occasional client work, running a side-hustle, or simply wanting an easier way to invoice a small number of clients. Full-time freelancers can use it too when their accounting needs stay simple.

Made for straightforward freelance work

Zinvoice makes sense if you need

  • Professional invoices
  • Occasional billable time tracking
  • Recurring invoices
  • Payment reminders
  • Simple payment records
  • Expenses, receipts and mileage
  • Client projects
  • Agreements and electronic signatures

When tax and bookkeeping records are part of the job

You probably need accounting software if you need

  • VAT accounting
  • MTD submissions
  • Bank feeds and reconciliation
  • Payroll
  • Full bookkeeping
  • Statutory accounts

If VAT accounting, MTD submissions, bank reconciliation, payroll or statutory accounts are becoming part of the work, it is probably time for full accounting software.

Why I built Zinvoice

I built the thing I wanted for my own freelance work.

“I wanted invoices, hours and payments to use the same client record.”

I had invoices in one place, hours somewhere else and a spreadsheet telling me who had paid. Then every so often I needed a client agreement signed and another bit of software appeared.

Zinvoice grew out of fixing that. I still use it for my own client work, so it stays focused on the jobs that actually come up.

It does not submit tax returns, prepare VAT returns, run payroll, connect to bank feeds or replace professional financial advice.

Pricing

One plan. Every feature included.

Use every Zinvoice feature during your trial and afterwards. After 7 days, the selected monthly or yearly plan continues unless you cancel. There are no higher feature tiers or separate add-ons for time tracking, projects or agreement signing.

£ 12
per monthOr £120 billed yearly
Start free for 7 days See full pricing

One plan

Invoices, time tracking, payments, expenses, projects and agreements.

  • Professional PDF invoices and secure links
  • Automatic numbering and saved client details
  • Projects, timers and manual time entries
  • Payments, refunds, expenses and mileage
  • Recurring invoices and payment reminders
  • Client documents and electronic signatures
Zinvoice is not full accounting software.

It does not include VAT accounting, MTD filing, bank feeds, reconciliation, payroll or statutory accounts.

7-day free trial · no setup fee · cancel anytime · built and supported in the UK

Before you sign up

Questions about the software.

Short answers about invoices, time tracking, agreements, payments and accounting software.

Read all FAQs
No. Zinvoice creates and sends invoices and adds records around client work. It does not provide VAT accounting, ledgers, payroll, bank reconciliation, VAT returns, prepared accounts or direct HMRC filing.
Yes. Start a timer or add time manually, associate it with a client and optional project, mark it billable when appropriate, and select eligible unbilled time for an invoice.
No. Both are optional. Use a project when a job has several invoices, hours or documents, and track time when hourly billing matters. You can create invoices directly for a client without using either feature.
Yes. Choose a prefix and the next number to use, then Zinvoice increases the number for new invoices. This lets you continue an existing sequence when moving from spreadsheets, Word, Canva, or another system.
Yes. Upload a finished one-off agreement PDF or reuse a saved standard agreement, then choose whether the client should sign it or simply read it. When a signature is needed, you sign first and the client receives a private link to read the PDF, type their full name, confirm their agreement, and sign online. Zinvoice keeps the exact sent copy and dated activity, then emails the completed signed PDF to both sides. You remain responsible for the agreement wording and whether it is suitable and legally valid.
Yes. Set up the client, line items, dates, frequency and delivery choice. Each generated invoice can be emailed automatically, or created as a draft for you to review and send manually.

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Seven days free

Create invoices, track hours and record payments in one focused app.

Use Zinvoice for the client work you actually do: professional invoices, optional time tracking, recurring invoices, manual payment and expense records, projects and agreements for signing.

7 days free, then £12/month or £120/year unless cancelled · every feature included

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