Fostering vs adoption: what’s the difference?

People often ring us having spent an evening reading about both, and still not sure which one they are actually asking about. It is a fair muddle to be in. Fostering and adoption both start in the same place, an adult with room in their home and their life for a child who needs one, and then they go in genuinely different directions. Here is what separates them, in plain terms, so you can work out which conversation you want to be having.

Please note: this is general information about fostering and adoption in England, not personal legal or financial advice. Figures are the latest published at the time of writing (August 2026) and are taken from gov.uk, the Department for Education and Ofsted. Rates and rules change, so check the current position with the relevant agency before making a decision.

One legal difference, and everything else follows from it

When a court makes an adoption order, the adopters become the child’s legal parents. Parental responsibility passes to them permanently and the child is, in law, their child, for the rest of their lives.

Fostering does not do that. Foster carers do not hold parental responsibility. Fosterline, the government-funded advice service for foster carers in England, puts it plainly: foster carers do not have parental responsibility for their foster child, but may be given delegated responsibility. Parents keep their parental responsibility when a child comes into care, and where there is a care order the local authority shares it with them.

That sounds technical until you see what it means on a Tuesday morning. As a foster carer you are the person who knows the child best, but you sit inside a team. Signing a school trip form, a haircut, a sleepover, a passport application: some of these are delegated to you, and some need a phone call. Good agencies get the delegated authority written down early so you are not chasing permission for ordinary things. An adoptive parent makes those decisions the way any parent does, without asking anyone.

How long a child stays

This is the difference most people are really asking about.

Adoption is permanent by design. The child stays, grows up, and the legal tie does not expire when they turn eighteen.

Fostering covers a much wider range. Some children stay a single night. Some stay for a weekend a month. Some stay until they are grown up and then keep coming back for Sunday lunch at thirty. Our own mix runs at roughly 60 per cent short-term and emergency care and 40 per cent long-term and permanent care, and plenty of carers do both over the years. You can read more about the different types of foster care if you are weighing them up. What fostering does not usually offer is certainty at the front door, because the plan for the child belongs to the court and the local authority, and it can change.

That uncertainty is the honest hard part of fostering, and it is worth saying out loud rather than dressing up. It is also the reason foster carers matter so much. A child in the middle of the most unsettled months of their life needs someone steady while the adults work out what happens next.

The numbers, so you can see the shape of it

The Department for Education’s figures for the year ending 31 March 2025 give a useful sense of scale in England:

• 81,770 children were in care on 31 March 2025.
• 3,040 children were adopted during the year, 20 more than the year before.
• 4,110 children left care under a special guardianship order, up 6 per cent.
• 1,660 children were waiting with a plan for adoption on 31 March 2025, around 2 per cent of all children in care.
• The average time from entering care to an adoption order being granted is about two years and three months.

Set against that, Ofsted counted 42,190 fostering households in England on the same date, down 1 per cent and falling for the fourth year running. Most children who need a home need a foster carer, not an adoptive parent, and there are fewer foster carers every year.

Money works completely differently

This trips up almost everyone, so it is worth being direct about it.

Foster carers are paid. It is a weekly fee that covers both the cost of caring for the child and a professional fee for the carer’s own work, and at South Coast it currently looks like this:

• £479.50 a week for a child aged 10 and under, with around £90 of that spent directly on the child.
• £507.50 a week for a child aged 11 and over, with around £100 spent directly on the child.
• £987 a week for a parent and child placement, though a deduction may apply if the parent receives benefits.
• Enhanced fostering, for children with higher needs, typically pays £100 to £200 a week more, and in rare and exceptional cases can reach £1,600.

Foster carers are treated as self-employed and qualify for Qualifying Care Relief, which means most pay little or no tax on their fostering income. You can read the detail on our fostering pay and allowances page.

Adopters are not paid. Adoption is parenthood, and parents are not paid to be parents. What adopters may get instead is employment leave: up to 52 weeks of statutory adoption leave, with 39 weeks of statutory adoption pay for those who qualify, at 90 per cent of average weekly earnings for the first six weeks and then £194.32 a week or 90 per cent of earnings, whichever is lower. Some adopters are offered a discretionary adoption allowance by the local authority in particular circumstances, and adoptive families in England can apply through their agency to the Adoption and Special Guardianship Support Fund, which pays for therapeutic support with a limit of £3,000 per child per year for therapy.

Neither route should be chosen on the money. But if you are wondering whether you could afford to stop work or go part time to care for a child, that is a real question, and the answer is different depending on which one you pick.

Getting approved: two different processes

Both routes assess you properly, and both are less frightening than people expect.

To adopt in England you must be at least 21, and gov.uk sets the bar in one sentence: if you are at least 21 years old and can provide a permanent, stable and caring home, you can apply to adopt a child. The assessment runs in two stages. Stage one is the checks, references, medical and initial training, and takes no longer than two months. Stage two is the deeper work with a social worker, more training and the report that goes to an independent adoption panel, and takes around four months. After approval comes matching with a child, then introductions, then the child moves in. Adopters can apply to court for an adoption order once the child has lived with them for at least ten weeks.

To foster you must be at least 18, though most services including ours look for 21 and above, and there is no upper age limit. You will need a spare room in most cases, though a baby under two can sleep in a cot in your own room. Assessment covers references, checks, a medical, preparation training and a Form F assessment written with your assessing social worker, and it ends at a fostering panel. Relationship status is not a barrier, and neither is renting, working, having pets or having grown-up children at home. If any of that is the thing quietly worrying you, our piece on whether single people can foster tackles several of these head on.

Where the two routes meet

They are not sealed off from each other, and two overlaps are worth knowing about.

Early permanence. Sometimes a baby or very young child is placed with a family who are approved as both foster carers and adopters, while the court is still deciding what should happen. The child is fostered at first, and if the court decides the child cannot return home, the same family adopt them, so the child never has to move again. It asks a lot of the adults, because in a small proportion of cases the child does return to a parent or a relative, exactly as it should if that is the right outcome. Coram, which pioneered the approach in England, is honest that this is the trade the carers accept.

Foster carers who adopt. It does happen. A child settles, the plan changes to adoption, and the people they want to stay with are the ones they already live with. Where a local authority foster carer applies to adopt the child in their care outside an agency plan, the law requires the child to have lived with them for at least one year before the application, under section 42 of the Adoption and Children Act 2002. It is not the reason to start fostering, but it is not a closed door either.

So which one is right for you?

A blunt test that helps most people: what are you actually offering?

If what you want is to be somebody’s parent, permanently, and to build a family that is legally and finally yours, you are describing adoption. Get in touch with an adoption agency or your local authority’s adoption service, and go and do that, wholeheartedly.

If what you can offer is a safe, warm, ordinary home for a child who needs one now, for as long as they need it, without knowing at the start how long that will be, you are describing fostering. It is skilled work, it is paid, and it is the thing most children in care actually need.

Some people know instantly. Others sit with it for months, and that is fine too. Nobody should talk you into either one.

You won’t have to do this alone

South Coast Fostering is a fostering agency covering Southern England, from Hampshire and Dorset across to Kent, Sussex, Surrey and the Isle of Wight. We do not place children for adoption, and we will say so plainly if adoption is what you are describing, and point you somewhere useful.

What we do is stand beside foster carers. Every South Coast carer has their own supervising social worker, a support team who answer the phone at eleven at night as readily as at eleven in the morning, training that starts before your first child arrives and carries on for as long as you foster, and other carers nearby who have been where you are. Foster carers do not wear capes. They are ordinary people who make room. As we put it on our own front door: a child isn’t just given a home, they’re given a chance.

Frequently asked questions

Can foster carers adopt the child they are caring for?

Sometimes, yes. If the plan for the child changes to adoption and the carers are the right family, it can happen. Where a local authority foster carer applies to adopt outside an agency plan, section 42 of the Adoption and Children Act 2002 requires the child to have lived with them for at least a year before they apply. Talk to your supervising social worker early, because the child’s social worker and the court both have to agree.

Do foster carers get paid and adopters don’t?

Broadly, yes. Foster carers receive a weekly fee, currently £479.50 for a child aged 10 and under at South Coast and £507.50 for a child aged 11 and over. Adopters are not paid an ongoing fee. Employed adopters may qualify for statutory adoption leave and pay, and some receive a discretionary adoption allowance from the local authority.

Is it harder to be approved as an adopter than as a foster carer?

Neither is harder, they look at different things. Adoption asks whether you can be this child’s parent for life. Fostering asks whether you can care well for children whose futures are still being decided, work openly with a team of professionals, and keep going when it is hard. Plenty of people are suited to one and not the other.

Which does South Coast do?

Fostering only, across Southern England. If you would like to talk it through with no pressure and no obligation, a fifteen minute phone call is usually enough to work out whether fostering fits your life. You can also call us any time on 023 8235 2020.

What if I start fostering and later decide I want to adopt?

People change direction, and fostering experience is never wasted. Some carers go on to adopt, some train as early permanence carers, and some discover fostering was what they wanted all along. Nothing about starting to foster closes the adoption door.