On this page
How the percentage is calculated
| Input | Example |
|---|---|
| Property purchase price or build cost | €400,000 |
| Mortgage and buyer funds available | €360,000 |
| Funding gap | €40,000 |
| FHS support | €40,000 |
| FHS equity share | 10% |
The formula is simple: FHS support ÷ property price or build cost = FHS equity share percentage. The difficult part is checking whether you are eligible and whether the property is within the relevant ceiling.
20% vs 30%: why Help to Buy changes the maximum
The maximum FHS support depends on whether Help to Buy is also being used.
- Without Help to Buy: FHS support can be up to 30% of the purchase price or build cost.
- With Help to Buy: FHS support can be up to 20% because Help to Buy is already helping with the deposit side.
- Minimum support: the scheme also has a minimum equity support threshold, so very small gaps may not qualify.
This is why two buyers with the same property price can have different FHS percentages. The final percentage depends on deposit, mortgage, Help to Buy, local authority ceiling and the scheme assessment.
What happens if the home value changes?
Because the FHS support is an equity percentage, the euro amount you need to buy back can move with property value.
| Scenario | Property value later | 10% FHS share value |
|---|---|---|
| Value stays the same | €400,000 | €40,000 |
| Value rises | €460,000 | €46,000 |
| Value falls | €360,000 | €36,000 |
The same percentage can mean a different euro amount later. That is the main trade-off: FHS can help you buy sooner, but the buy-back cost may rise if the home rises in value.
The buyer-friendly way to think about it
Do not ask only, “How much can I get from FHS?” Ask these four questions together:
- What percentage will FHS own? A smaller percentage is easier to manage later.
- Can I redeem before year 6? This avoids service charges if full redemption is possible.
- What if I need to sell? A sale usually means the FHS share has to be redeemed from the proceeds.
- What if I switch lender? Switching to a non-participating lender can trigger full redemption.
Next steps
- Estimate the percentage: First Home Scheme Calculator.
- Understand year-6 costs: FHS Service Charges Explained.
- Plan the buy-back route: Redeeming or Buying Back FHS Equity.
- Check the local limit: FHS Price Ceiling Lookup.
Frequently asked questions
Is the FHS equity share a loan?
No. It is a shared-equity stake, not a normal loan with monthly repayments. FHS receives a percentage interest in the home in return for the support.
Does the FHS percentage stay the same?
The percentage can remain in place until you redeem it. If you make a partial redemption, the remaining FHS percentage should reduce.
Can the amount I owe rise?
Yes. If the home value rises, the euro value of the FHS percentage can rise. A 10% share is worth more on a €450,000 valuation than on a €400,000 valuation.
Can the amount I owe fall if the property value falls?
The equity model means the share value can fall if the property value used for redemption falls. Always confirm the actual calculation with FHS before making decisions.
Does using Help to Buy reduce the FHS maximum?
Yes. If you use Help to Buy, the maximum FHS support is generally lower than if you do not use Help to Buy.
Should I take the maximum FHS amount available?
Not automatically. A smaller FHS share is usually easier to redeem and cheaper to keep long term. Take only what you need after checking mortgage, deposit and Help to Buy.
Does FHS become a co-owner in the day-to-day sense?
FHS has an equity interest, but you remain responsible for living in, maintaining and managing the home under your mortgage and scheme documents.
Sources & references
Related calculators
Use these tools for the numbers behind this guide.