Brexit Calculator - Trade Cost and Currency Impact
Estimate Brexit-related cost changes from EU revenue exposure, tariffs, currency shifts, and additional administration.
Enter revenue exposure and expected Brexit cost drivers to quantify the annual financial impact.
Brexit Calculator - Trade Cost and Currency Impact
Estimate Brexit-related cost changes from EU revenue exposure, tariffs, currency shifts, and additional administration.
About the Brexit Calculator
Brexit Calculator is designed for post-Brexit trade impact analysis, where a small change in one input can alter a decision, budget, or performance story. The calculator keeps the assumptions visible beside the result so the number can be reviewed instead of copied blindly. Use the fields as a compact worksheet: enter the values using the units shown on each label, calculate the primary result, then read the supporting lines to understand which driver is moving the answer.
The calculation applies tariff and currency percentages to EU-exposed revenue and then adds extra administrative costs. In plain terms, Total impact = exposed revenue x tariff rate / 100 + exposed revenue x currency change / 100 + extra admin costs. The supporting outputs are included because the headline number rarely gives enough context on its own. Margins, rates, totals, variances, or remaining balances explain whether the result is caused by price, volume, time, cost structure, or exposure.
Common use cases include estimating export margin pressure, reviewing supplier price changes, briefing finance teams, comparing hedging assumptions, and sizing compliance overhead. A practical review usually compares at least three cases: conservative, likely, and optimistic. Change one input at a time so the sensitivity is clear; if a small input movement creates a large output change, document the assumption and look for a better source before presenting the result.
Important caveats include commodity codes, rules of origin, VAT treatment, Incoterms, customs brokerage, hedging contracts, customer pass-through, and changes in shipment volume. The calculator is a deterministic planning aid, not a substitute for professional advice, policy review, tax guidance, legal review, HR judgment, brokerage instructions, or a full financial model. Rounding can also matter when the result will be used in contracts, accounting entries, payroll conversations, or regulated decisions.
For best results, keep time periods and units consistent. Enter percentages as ordinary percentage values, such as 8 for 8%, rather than decimals. Positive currency changes increase modeled cost, while a negative currency input can show a favorable offset against tariff and administration costs. After calculating, compare the answer with an independent estimate or source document and save the assumptions that support the scenario.
Brexit Calculator Examples
Use these examples to check the calculation pattern and compare common scenarios.
| Inputs | Output | Notes |
|---|---|---|
| £2,000,000 revenue, 30% EU share, 4% tariff, 3% currency cost, £25,000 admin | £67,000.00 impact | Exposure is £600,000 before tariff and currency effects. |
| £750,000 revenue, 20% EU share, 2% tariff, 1% currency cost, £8,000 admin | £12,500.00 impact | Smaller EU exposure limits the cost increase. |
| £5,000,000 revenue, 45% EU share, 5% tariff, -2% currency movement, £60,000 admin | £127,500.00 impact | A favorable currency move offsets part of the tariff burden. |
How to Use the Brexit Calculator
- Enter each input using the units shown in the field labels.
- Click Calculate to run the formula and show the headline result.
- Review the supporting result cards to understand the drivers behind the answer.
- Change one assumption at a time to compare conservative, likely, and optimistic scenarios.
Brexit Calculator FAQ
What does EU revenue exposure mean?
EU revenue exposure is the share of annual revenue affected by EU trade costs or currency movement. The Brexit cost calculation applies percentage impacts only to that exposed amount.
Should currency changes be positive or negative?
Enter a positive percentage when exchange movement increases cost and a negative percentage when it reduces cost. The result adds that currency impact to tariff and administrative costs.
Does the Brexit calculator include VAT?
The calculation does not model VAT reclaim timing or country-specific tax rules. Add those effects separately if they materially change cash flow or margins.
Can tariffs be passed on to customers?
Sometimes, but pass-through depends on contracts, competition, and customer price sensitivity. Running scenarios with different exposure or admin assumptions can show how much margin pressure remains.
What should be included in admin costs?
Include incremental customs brokerage, paperwork, compliance support, delays, or system costs caused by cross-border changes. Keep one-off transition spending separate from recurring annual costs when comparing periods.