
Credit Union Deposit Growth

Credit union deposit growth costs more and lasts less
Members shop rates now, and the money that arrives for a promotion is often the first to leave when it ends. High-yield online accounts, brokerage cash, and big banks are a tap away, so the credit union pays up to win deposits and pays again to keep them.
The rate special that brings in new money also invites existing members to move their balances into it, and the credit union ends up repricing money it already had. Cost of funds climbs, margin tightens, and the ALCO starts asking what each campaign's deposits really cost. Meanwhile the checking relationships that keep deposits steady get less attention than the next promotion.
Credit Union: From 1% to 5% Growth




What changes when this works
Depositors with checking attached
RC Strategies pairs certificate and money market offers with a checking and direct deposit offer. Members whose paychecks arrive at the credit union keep their other balances there and renew at maturity more often.
Growth in liquid, yield-bearing accounts
RC Strategies builds product campaigns around accounts that pay a yield and keep money accessible, so the offer matches where member money is already moving.
New money from other institutions
RC Strategies aims deposit offers at money members and prospects keep at other institutions, using member data and targeted paid media. A broadcast rate special mostly reprices balances the credit union already has; a targeted offer brings in new money.
Promotional balances that stay
Onboarding starts the day a promotional account opens and continues through the depositor's first weeks, with offers for checking, direct deposit, and a second deposit account. Depositors who hold several products stay longer than certificate-only customers.
The services that power this outcome

Credit Union Digital Marketing
Digital marketing that grows members, loans, and deposits and reports them by channel.

Credit Union Paid Media Management
Paid media planned around the balance sheet and accountable to funded loans and opened accounts.

Credit Union Marketing Automation & Member Journeys
Member journeys that turn new accounts into primary relationships, running automatically for every member.
Built for credit union regulatory realities in a rapidly consolidating industry
We deliver a complete go-to-market solution for credit unions who need membership growth. We unify the member experience across product, sales, marketing, and member experience and accelerate your credit union's performance at scale.
What clients ask before we start
Do deposit promotions attract rate chasers who leave when the rate ends?
Some will, and the credit union's own offer design largely determines how many. RC Strategies works out offer terms with the finance team before launch, such as relationship pricing that pays the top rate to members who bring direct deposit, so the promotion attracts members who intend to stay.
How do you keep certificate money when it matures?
Reach the member before the maturity date with two options that keep the money at the credit union: renew, or move it into a liquid account. More maturing certificate money is shifting into liquid accounts, so an offer limited to a renewal rate misses a growing share of it. RC Strategies runs maturity journeys that present both options ahead of the date.
How can a credit union grow core deposits without raising rates?
Grow checking, where balances arrive with the paycheck. RC Strategies builds checking campaigns around direct deposit, with a landing page and follow-up emails that walk a new member through moving a paycheck, so balances build without a rate increase.
How do you know a deposit campaign actually worked?
Look at the balances still in place after the promotion ends and what they cost; gross deposits raised come second. Curinos, a deposit analytics firm, found that winning deposits back costs US banks 1.70% more, all-in, than keeping them, which is why retention belongs in the results. RC Strategies reports each campaign's new money separately from money moved between accounts, then tracks those balances and their cost past the promotional period.
How do you prove deposit marketing ROI to the ALCO and board?
Show what each campaign's money costs next to what it earns once it funds loan growth, because that spread is what reaches net interest margin. NCUA data shows credit union net interest margin at 3.49% of average assets through the second quarter of 2026, up from 3.32% a year earlier. RC Strategies builds deposit reporting for the ALCO and board in those terms, following the format in our guide to marketing ROI board reporting.
Which members are moving the most deposits out of credit unions?
Gen X and baby boomer members, by dollar volume. Vendor research from Cornerstone Advisors found that 65% of the $2.15 trillion in deposits community banks and credit unions have lost to other providers came from those two generations. RC Strategies segments retention and maturity campaigns by age and balance, so members with the most money at stake hear from their credit union before a competitor reaches them.
More outcomes worth a look
Build deposits that outlast the promotion
