Invoice Finance Affordability Calculator UK

Tells you whether your monthly invoice finance cost is sustainable based on your turnover and margin. Inputs: annual turnover, gross margin, expected facility size. Output: monthly cost, % of revenue, % of margin, sustainability score.

Calculator

Your monthly invoice finance cost

£560

% of monthly revenue1.34%
% of gross margin3.8%
SustainabilityComfortable

Invoice finance is comfortable for your business. The facility cost is well within typical sustainability thresholds (under 5% of gross margin).

Worked example: £500,000 turnover, 35% gross margin (default calculator scenario)
ItemValue
Annual turnover£500,000
Gross margin35%
Expected facility size£80,000
Service charge (0.7% of turnover)£3,500/year
Discount charge (3.75% base + 2% margin, 70% average utilisation)£3,220/year
Estimated monthly cost£560
Cost as % of monthly revenue1.34%
Cost as % of gross margin3.8%
Sustainability ratingComfortable

Source: Market Invoice affordability calculator, base rate 3.75% + 2% discount margin

Illustrative default scenario. Adjust the calculator inputs above for your own figures.

View as plain-text Markdown
### Worked example: £500,000 turnover, 35% gross margin (default calculator scenario)

| Item | Value |
| --- | --- |
| Annual turnover | £500,000 |
| Gross margin | 35% |
| Expected facility size | £80,000 |
| Service charge (0.7% of turnover) | £3,500/year |
| Discount charge (3.75% base + 2% margin, 70% average utilisation) | £3,220/year |
| Estimated monthly cost | £560 |
| Cost as % of monthly revenue | 1.34% |
| Cost as % of gross margin | 3.8% |
| Sustainability rating | Comfortable |

Source: Market Invoice affordability calculator, base rate 3.75% + 2% discount margin

Illustrative default scenario. Adjust the calculator inputs above for your own figures.
What the estimate can and cannot tell you
“An affordability estimate is a starting point, not an offer. The real facility size and price depend on your debtor-book quality, sector, and the individual lender's appetite, which only a quote against your actual ledger will reveal.”
OM

Oliver Mackman

Director, Best Business Loans Ltd, Market Invoice

Reviewed 12 June 2026

What this tool tells you

Tells you whether your monthly invoice finance cost is sustainable based on your turnover and margin. Inputs: annual turnover, gross margin, expected facility size. Output: monthly cost, % of revenue, % of margin, sustainability score.

All UK invoice finance providers serve businesses across the full UK. The numbers above are typical UK market rates for invoice finance affordability calculator UK. For real quotes matched to your specific business, use our 60-second comparison tool.

Now Get Real Quotes for Your Business

3 free quotes from UK invoice finance providers matched to your sector and turnover. Free, no obligation, 60 seconds.

Step 1 of 3 · Your business

Start typing and we'll search Companies House.

Your details are secure. See our privacy policy.

Free · No obligation · 24-hour indicative quotes