Construction & trades
MTD software for bathroom fitters.
Finish the bathroom. Stay on top of the books.
Tiles, taps and last-minute changes can leave bathroom fitters with paperwork from several merchants for one customer. Avona helps organise that evidence alongside your job payments.
- Who it is for
- Bathroom fitters working as sole traders, managing their own business records and MTD for Income Tax updates.
- Available now
- Digital records, bank feeds, statement imports, transaction categorisation and quarterly self-employment updates. Pro adds customer invoicing, VAT accounting and reporting.
- Monthly price
- From £15/month for Lite. Pro is £20/month.
- Free trial
- Full access for 7 days. No credit card required.
- Annual-return limitations
- Quarterly updates do not replace your annual tax return. HMRC lists annual-return items including PAYE income, interest, dividends and pensions as in development. Check the listing and confirm support for your income sources before relying on Avona for your annual return.
Making Tax Digital
It’s what comes in.
Before costs go out.
When you supply sanitaryware as part of an installation, those charges sit alongside your labour income. A high-value suite can make turnover look very different from the profit on the job.
Understand Making Tax Digital →When does MTD apply?
Combined qualifying self-employment and property income, before expenses:
- Over £50,000 in 2024/25
- From 6 April 2026
- Over £30,000 in 2025/26
- From 6 April 2027
- Over £20,000 in 2026/27
- From 6 April 2028
Eligibility and exemptions matter. These are income thresholds, not tax-free allowances.
Check HMRC’s eligibility guidance ↗From the work to your records
Clear records for your bathroom installation.
Bring the evidence into Avona, review the suggested categories and check the figures before submitting. These three examples show the records behind your bathroom installation, shared purchases and an unused shower tray returned to the merchant.
| What you bring | How you use Avona | What you check |
|---|---|---|
| £1,900 for your bathroom installation £680 spent on sanitaryware and waterproofing materials | Connect your bank or import the payment, then upload the invoice or receipt for sanitaryware and waterproofing materials. Review the income and the purchase as separate records. | Keep £1,900 as the sale and the £680 cost separately. The £1,220 left after this cost is not turnover. Check that the spending is eligible for your business. |
| £100 mixed purchase £80 for fittings for a client's bathroom; £20 for a shower head for your own home | Upload the itemised receipt and review the suggested category. Identify fittings for a client's bathroom separately from a shower head for your own home. | Only the eligible £80 business portion belongs in business costs. Exclude the £20 personal purchase, and check that importing both the bank transaction and the receipt has not counted the spending twice. |
| £30 supplier credit Linked to an earlier £120 purchase | Upload the original invoice and retain the credit note for an unused shower tray returned to the merchant. Review the refund or account credit alongside the purchase. | The documents now show £90 of net spending. Keep the original £120 and the £30 adjustment explainable, with timing matched to your accounting method; a supplier refund is not a new customer sale. |
Keep supporting documents alongside your figures, review business use and apply your accounting method consistently. HMRC: keeping business records ↗
The costs behind your work
Six expenses worth
keeping records for.
Examples for bathroom fitters. Claim only eligible business costs; mixed use, equipment and your accounting method can change the treatment.
Pipe fittings
Waterproofing materials
Tile adhesives
Tool maintenance
Protective clothing
Business insurance
One thing to watch
Do not lose the credit note
An unused shower tray returned to the merchant changes the cost of the installation. Keep the original invoice, return credit and refund together so the records tell the whole story.
HMRC: keeping business records ↗Fit the admin around the work
A routine around your bathroom installation.
Upload merchant paperwork as the bathroom progresses, then review refunds and the final customer payment when the job is complete.
Capture the supporting documents
Upload receipts or invoices for sanitaryware and waterproofing materials. Keep the date, supplier and amount legible, and distinguish fittings for a client's bathroom from a shower head for your own home.
How document capture works →Reconcile your bathroom installation payments
Review each customer receipt against the work it covers. Keep the breakdown for an unused shower tray returned to the merchant available alongside the bank entry, so fees, refunds or timing differences can be explained.
How bank review works →Review before you submit
Review Avona AI’s suggested categories, check that your bathroom installation income is complete, and remove duplicate or personal spending. Keep the evidence for an unused shower tray returned to the merchant ready for your annual-return review too.
Before you get started
Questions from bathroom fitters.
Does MTD apply to everyone in this profession?
No. This page covers bathroom fitters working as sole traders. Your start date depends on combined qualifying self-employment and property income before expenses, and any exemptions. Employment and limited-company work have different reporting arrangements.
How should I record a customer's change of specification?
Keep the revised order, any supplier credit and the updated customer charge together. They explain why the original quote and the eventual bank payments differ.
How do I record an unused shower tray returned to the merchant?
Example: £30 supplier credit (linked to an earlier £120 purchase). The documents now show £90 of net spending. Keep the original £120 and the £30 adjustment explainable, with timing matched to your accounting method; a supplier refund is not a new customer sale.
Which bookkeeping issue should I watch for?
Do not lose the credit note. An unused shower tray returned to the merchant changes the cost of the installation. Keep the original invoice, return credit and refund together so the records tell the whole story.
Can I keep using my existing spreadsheet?
Yes. Bring your bathroom installation income records and evidence of sanitaryware and waterproofing materials into Avona using supported spreadsheet uploads. Check dates, categories, personal spending and duplicates against the original documents before you approve the records.
Do quarterly updates complete my annual tax return?
No. You still need the annual tax return and any relevant adjustments or other income. HMRC currently lists annual-return items including PAYE income, interest, dividends and pensions as in development for Avona. Confirm support for your own income sources and circumstances before relying on Avona for the annual return.
Built for the way you earn
Refresh your bathroom-fitting bookkeeping.
Choosing Avona
Your questions, answered.
Can I create customer invoices?
Yes. You can create customer invoices with Avona Pro.
What if I am VAT-registered?
Full VAT accounting is available with Avona Pro, so you can manage your VAT-registered business with Avona.
Can my accountant review my records?
Yes. You can connect your Avona account to your bookkeeper or accountant so they can review your records.
Can I use my phone on site?
Yes. Every feature has a mobile-friendly version, so you can manage your accounts from your phone while you are on the move.
Can I keep using my personal bank account?
Yes. Avona supports Open Banking connections and PDF bank statement uploads. You can clearly separate personal and business transactions to keep your business records organised.