Matching Your Child's Savings: Set the Amount and a Cap
By Erik Nilsen · Kroni7 min read
Keep the promise concrete and limited. Agree that you'll match whatever your child saves, but never more than a fixed cap per period. Write down what counts as new saving, when you add the match, and what happens if your child switches goals. That way everyone knows what was promised, and you know ahead of time the most it can cost you.
An open promise like "we'll match whatever you save" sounds generous. Then your child gets $50 for their birthday and wants to save all of it. A cap doesn't make the deal less generous. It makes it a deal you can keep.
Why a cap makes the promise easier to keep
You choose whether to offer a parent match. Once you have promised it and your child has met the conditions, keep that agreement. So set the limit before your child starts saving, not afterward.
A cap helps in three ways:
- You know the maximum. If the cap is $5 a week, you can never owe more than $5 that week.
- Your child knows the rule. There's less negotiating when the rule is written down.
- The match is predictable. Your child can work out for themselves how much will be added.
Necessary expenses like clothes, school supplies and food stay the parents' responsibility. The match only applies to things your child chooses to save for.
Example: dollar for dollar, up to $5
The numbers below are a made-up example to show how a cap works. They are not a recommended rate. Pick amounts that fit your family's budget.
Rule in this example: For every dollar your child adds to their savings goal during the week, the parents add one dollar. Maximum $5 per week.
| Child saves this week | Parent match | Total added to goal |
|---|---|---|
| $0 | $0 | $0 |
| $3 | $3 | $6 |
| $5 | $5 | $10 |
| $8 | $5 (cap reached) | $13 |
| $20 | $5 (cap reached) | $25 |
Look at the $8 row. Your child doesn't get $8 in matching, because the cap is $5. Walk through that exact row together before the deal starts, so nobody is disappointed the first time the cap kicks in.
Younger kids often understand it best with real coins on the table: "You put three here, we put three next to it." Older kids can fill in the table themselves and check the math.
What counts as new saving?
This is where most misunderstandings happen. Decide ahead of time:
- Do gifts count? Many families decide that only money the child earned or got as allowance counts, and birthday money doesn't. Others let everything count, but then the cap matters even more.
- Does money moved from another goal count? If your child moves $8 from "bike" to "game," that isn't new saving. It's the same money.
- Does money taken back out count? Agree that only what's still in the goal at check time counts.
A simple wording: New saving is how much the goal has grown since the last check, from the child's own money, not counting the parent match.
When does the match actually happen?
A match that will arrive "at some point" is hard to trust. Pick a fixed check time, like Sunday evening. Look together at how much your child added, work out the match and add it.
That gives you three clear rules:
- Saving done before the check counts for that week.
- The match is added at the check, not during the week.
- If you forget the check, do it the next day. The cap still applies per week. If two weeks need to be settled together, calculate each week’s new saving and match separately, applying its own weekly cap. Do not combine both weeks under one weekly cap.
Don't count the same money twice
At each check, write down the amount actually saved in the goal. Subtract excluded gifts and transfers from other goals when finding new saving. Money that has already earned a match does not become new saving when your child takes it out and puts it back. Next week, only count the increase from that number. The number you write down already includes last week's match, so the match won't be mistaken for your child's own saving.
Example: The goal stood at $12 after the last check, including the match. Now it stands at $16. Your child's new saving is $4, so the match is $4.
If the goal changes
Kids change their minds, and that's fine. Still, agree ahead of time:
- Matches already given stay put. What's given is given.
- Moving money between goals isn't new saving. It doesn't trigger a new match.
- A new goal can get a new deal. You decide whether the match carries over to the new goal or only applied to the first one.
- The deal can have an end date. For example, the start of summer break, so you can review and adjust.
A parent match isn't interest
It's tempting to call this "interest," but it's something different. Interest from a bank is a percentage of the balance and follows the bank's terms. A parent match is an optional family agreement with a fixed cap. To explain the difference, you can read Interest Explained for Kids: 7 Simple Tips together. Give the match its own name, like "family bonus" or "double dollar."
How to record it in the app
In Kroni, your child can have one or more savings goals, and parents can add a contribution or adjustment to the balance so the agreed amount shows up. Kroni can show a pledged amount based on a matching percentage on the goal, but that is a promise, not a payment. This example uses a separate calculation with a weekly cap and rules for new saving. For that agreement, you can leave the matching percentage at zero, credit the actual contribution once at the check, and then move it into the goal. That avoids showing the same contribution as both saved money and an extra percentage pledge. The app does not pay interest. Kroni doesn't move real money either. If the match should also become cash or a transfer, you handle that outside the app. For more on how kids can read the numbers, see Balance Explained for Kids.
Filled-in example agreement
Fictional example.
- Child: Ella, 10
- Savings goal: Roller skates
- Rule: One dollar from us for every dollar Ella saves herself
- Cap: $5 per week
- Counts as new saving: Allowance and money from chores. Gifts don't count.
- Doesn't count: Money moved from other goals, money taken out before the check
- Check time: Sunday after dinner
- Goal amount at last check: $12
- If the goal changes: Matches already given stay. New deal for a new goal.
- Agreement runs until: June 20
- Signed: Ella, Mom, Dad
Copyable template
Fill it in together and put it up somewhere visible.
| Item | Our agreement |
|---|---|
| Child | |
| Savings goal | |
| Rule (e.g. 1 to 1) | |
| Cap per week/month | |
| Counts as new saving | |
| Doesn't count | |
| Check time | |
| If we forget the check | |
| If the goal changes | |
| Agreement runs until | |
| Signed |
Weekly check log:
| Week | Amount at last check | Amount now | Child's new saving | Match (up to cap) | Added? |
|---|---|---|---|---|---|
| 1 | |||||
| 2 | |||||
| 3 | |||||
| 4 |
Get started this week
- Decide the cap as adults first, based on what you can comfortably keep up.
- Go through the example table with your child, especially the row where the cap kicks in.
- Fill in the template together and agree on a check time.
- Write down today's amount in the savings goal.
- Do your first check on Sunday, and adjust after a month if needed.
Frequently asked questions
- How high should the cap on our match be?
- There's no single right amount. Pick a cap you can keep every week without regret, even when your child saves a lot. The amounts in this article are only examples to show how a cap works.
- Should birthday money and other gifts get matched?
- That's your call, but agree on it ahead of time. Many families only match allowance and chore money, because gifts can be large. If you do let gifts count, the cap keeps the match within what you planned.
- Is a parent match the same as interest?
- No. Interest is a percentage a bank calculates under its own terms. A parent match is an optional family agreement with a fixed cap, where you work out and add the amount yourselves at an agreed check time.
