Estimate software UK small businesses win work with.
SwiftBooks Pro is online estimate software for UK small businesses: send branded quotes with line-by-line VAT, get online client approval in a tap, track viewed and accepted status in real time, then convert approved estimates into invoices in one click — no spreadsheets, no double entry.
What is estimate software?
Estimate software(also called quote software or online quoting software) is a digital tool that helps UK businesses prepare, send and track professional estimates before any work starts. It calculates net, VAT and gross totals, applies your branding to a clean PDF or web view, sends the quote with an online approval link, and tracks whether the customer has opened or accepted it.
Good online estimate software replaces emailed PDFs and spreadsheet templates with a structured workflow: quote→ online approval→ convert to invoice. Approved estimates carry every line item, customer detail and VAT rate into an UK VAT invoice in one click — no re-typing, no version-control confusion, no missed lines.
SwiftBooks Pro is estimate software UK small businesses, sole traders and SMEs use to win work — from Bristol freelancers and Manchester agencies to Edinburgh consultants and London limited companies. Every paid plan includes the client approval portal, expiry follow-ups, and one-click conversion to a VAT-compliant invoice.
From estimate to paid invoice — in one click.
Every estimate you send in SwiftBooks Pro carries the customer, line items, VAT rates and totals you'll need on the final invoice. When your customer approves the quote online, one click converts it to an UK VAT invoice— no re-typing, no copy-paste errors, no version-control confusion.
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1Build a branded estimate with line-by-line VAT
Choose a template, add line items with correct VAT rates(standard 20%, reduced 5%, zero or exempt), apply discounts, set an expiry date, and preview before sending.
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2Send with a secure online approval link
The customer receives the estimate by email with a one-click approve or decline button. They can comment, request changes, or e-sign — and you get an instant notification.
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3Track viewed, accepted & expiring quotes
The dashboard shows real-time status: sent, viewed, accepted, declined or expired. Automatic follow-ups go out before expiry so nothing falls through the cracks.
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4Convert approved estimate to invoice — one click
When the customer accepts, click Convert to Invoice. Customer details, lines, VAT, discounts and currency carry across cleanly. The invoice posts to your sales ledger and your MTD digital records in the same step.
Professional estimate controls for UK businesses.
Whether you are a limited company in London or a sole trader in Cardiff, these tools turn polished quotes into approved work — faster.
Branded estimate templates
Upload your logo, set brand colours and pick a clean layout. Every quote goes out looking professional — whether your client is a startup in Shoreditch or a multinational in Canary Wharf.
See templates → ★ ApprovalOnline client approval portal
Customers click one button to accept or decline your estimate, add comments or e-sign. No PDFs to print, no "reply with yes" back-and-forth — and you get an instant notification.
Learn more → ★ ExpiryExpiry dates & follow-ups
Set a valid-until date on every quote and let SwiftBooks Pro send polite follow-up reminders before it lapses. Stale quotes never sit forgotten in a customer's inbox.
Learn more → ★ ConversionOne-click estimate-to-invoice
When the customer accepts, click Convert to Invoice. Every line, VAT rate, discount and currency carries across to an UK VAT invoice— no copy-paste, no missed lines.
Learn more → ★ GlobalMulti-currency quoting
Multi-currency quoting is on Business and above. Quote in the customer currency, then convert to a VAT invoice in the same books.
Learn more → ★ AnalyticsAcceptance & win-rate analytics
See your acceptance rate, average response time and revenue pipeline at a glance. Spot which estimate templates and line items win most often, and refine your sales quotation approach with real data.
Learn more →Quote-to-invoice software with VAT done right.
SwiftBooks Pro is not a standalone PDF quote tool — it is estimate software that understands UK VAT and bookkeeping. Every line carries the correct VAT treatment, and when the customer approves, that treatment flows into an HMRC-compliant invoice without retyping a single figure.
- ✓ Net, VAT and gross totals on every estimate line
- ✓ Standard (20%), reduced (5%), zero-rated & exempt
- ✓ Discount, deposit & staged-payment handling
- ✓ Multi-currency quotes on Business+
- ✓ Expiry dates with automatic follow-up reminders
- ✓ Online client approval portal with e-signature
- ✓ Viewed, accepted, declined & expired tracking
- ✓ One-click conversion to UK VAT invoice
- ✓ Linked audit trail — estimate ↔ invoice
From approved estimate to online payment.
Estimates do not collect payment themselves. Once your customer approves the quote and you convert it to an invoice, every SwiftBooks Pro invoice carries an embedded Pay Now button — Stripe, PayPal, GoCardless on Business+. Cash hits your account faster, with no extra logins for the customer.
Estimate software UK — honest competitor view.
Benchmarked against leading UK cloud accounting brands your customers already know. Treat pricing as indicative — always confirm on each vendor's site.
| Feature | SwiftBooks Pro | Xero | QuickBooks | Sage |
|---|---|---|---|---|
| Free plan for sole traders | £15 Solo ex VAT after trial | ✗ | ✗ | Basic only |
| Starting price (per month) | £15 Solo ex VAT | £16 Ignite | £15 Simple Start | £15 Start |
| Online estimates / quotes | ✓ All plans | ✓ | ✓ | Paid plans |
| Online client approval portal | ✓ All plans | Limited | Limited | ✗ |
| E-signature on estimates | ✓ | ✗ | Add-on only | ✗ |
| Expiry dates & auto-reminders | ✓ All plans | Paid only | Paid only | Paid only |
| One-click estimate → invoice | ✓ | ✓ | ✓ | ✓ |
| VAT-aware line totals | ✓ | ✓ | ✓ | ✓ |
| Multi-currency quoting | ✓ All paid plans | Premium only | Premium only | Paid plans |
| Branded templates on Free plan | ✓ | ✗ | ✗ | ✗ |
| Estimate limit on entry plan | Unlimited | 20/month on Ignite | Unlimited | Unlimited |
Prices correct as of May 2026, excluding VAT. Feature availability subject to change. See our full comparison →
What Sales → Estimates actually does.
Raise the quote, send the PDF, they accept online. Convert to invoice. There is no separate sales-order document.
Multi-currency quoting is Business+. Native apps are not live — they accept in the browser.
Payment happens on the invoice: Stripe, PayPal, or GoCardless on Business+. Estimates do not collect money themselves.
Estimate software UK — FAQs for small businesses.
Direct answers on quotes, online approval, VAT, MTD and one-click invoice conversion — structured for search and voice assistants.
What is estimate software?
It sends a quote before you invoice. In SwiftBooks Pro: Sales → Estimates, then convert to invoice when they accept.
Can I convert an estimate into an invoice?
Yes. Convert to invoice copies customer, lines, VAT and totals onto a draft invoice.
Can customers approve estimates online?
Yes. The estimate includes an accept link. Native apps are not live — they use the browser.
Is there free estimate software for UK sole traders?
No free-forever plan. 30-day trial, then Solo at £15/month ex VAT. Unlimited customers on every paid plan. Native apps are not live.
Does estimate software help with Making Tax Digital (MTD)?
Estimates are not a VAT event. The later invoice stays in the ledger.
Estimate software UK small businesses win work with.
Join thousands of UK businesses using SwiftBooks Pro to send branded estimates, get online approval, and convert quotes into invoices in one click. 30-day trial, then Solo at £15/month ex VAT.