Deposit Attrition Analyzer

Estimate the deposits leaving your institution for crypto exchanges and the cost of replacing that funding. Search any US bank or credit union to start from your own call report data.

Start with your institution

Search any US bank or credit union to auto-fill the model with their latest call report deposits. You can adjust every other input afterwards.

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Model Inputs

Deposit Base

$500M

Locked to the institution's call report total when you select one above. Numeric field is in millions of dollars.

$10M$100B
$35,000

Used to estimate customer or member count. Credit unions typically run near $18k; community banks near $35k; trust charters higher.

$5k$100k
14,286

Derived from total deposits divided by average balance. Call reports do not disclose customer counts.


Exchange Activity

12.0%

Share of customers transacting with crypto exchanges through their accounts. NCA's 2026 survey counts roughly 25% of US adults (about 67 million) as crypto owners; KlariVis found 9 in 10 of the 92 community banks it studied had customers actively transacting with exchanges. The default sits below adult ownership because not every owner transacts through their bank account in a given period. Sources: NCA 2026 State of Crypto Holders Report · KlariVis, "The Quiet Spread" (2026)

0%40%
$3,000

Planning assumption: gross dollars sent to exchanges per crypto-active customer per year. Published per-user figures vary widely, and exchange-reported retail volume per user (Coinbase's, for example) runs well above this default. Adjust to your own transaction data.

$500$12k
64%

Share of gross outbound dollars that do not return. KlariVis's transaction-level research on 226,000 Coinbase-related transactions across 92 community banks found $2.77 leaving for every $1 returning, implying roughly 64% of gross outbound flow stays gone (1 − 1/2.77). Source: KlariVis, "The Quiet Spread" (2026)

30%90%

Funding & Growth

250 bps

Adjustable assumption: the spread between marginal wholesale funding (FHLB advances, brokered deposits) and the interest previously paid on the deposits that left. Set it to your own funding curve.

0 bps500 bps
+2.0 pts/yr

Annual percentage-point growth in the crypto-active share. Security.org's annual survey shows US adult ownership rising from 27% in 2024 to 30% in 2026. KlariVis flags potential acceleration if exchanges and stablecoin platforms pay yield on balances. Sources: Security.org 2026 Cryptocurrency Adoption and Sentiment Report · KlariVis (2026)

0 pts+6 pts

Projection Horizon

How the model works: customers = deposits ÷ average balance. Each year, crypto-active customers × gross transfers × net outflow ratio = net deposits gone. Replacement cost carries the cumulative departed balance at your chosen spread.

Year 1 rates · cumulative figures over the selected horizon

Crypto-Active Customers

1,714

of 14,286 estimated · 12.0% of base

Annual Net Outflow (Year 1)

$3.29M

64% of gross transfers stays gone

Replacement Funding Cost

$549K

Year 5 run-rate · lost funding × 250 bps

Cumulative Net Outflow

$21.9M

over 5 years · 4.4% of deposits

Net Outflow by Year

Year-by-Year Projection

Year Active share Net outflow Cumulative Repl. cost

Money market balances are the most exposed

96.3%of crypto transaction volume linked to money market accounts was outbound in KlariVis's study of 92 community banks, the most one-directional flow of any account category in the dataset. The account type usually treated as rate-sensitive savings showed the least round-trip activity.

Sensitivity: crypto-active share × gross transfers per customer (annual net outflow)

Click any cell to apply that combination.

What's Modeled and What Isn't

Modeled

Transfer flows scaled to your deposit base. Customers estimated from deposits ÷ average balance; an adjustable crypto-active share; per-customer gross transfers; and a research-based net outflow ratio.
Growth in the active share. The crypto-active share rises by your chosen number of percentage points each year of the projection.
Replacement funding cost. Cumulative departed deposits carried at your chosen spread over the interest previously paid on them.

Not modeled

Relationship attrition beyond transfers. Customers who move their entire relationship (checking, cards, lending) are not captured.
Fee income lost on departed relationships, such as interchange and account fees tied to balances that leave.
Rate-driven deposit migration unrelated to crypto exchanges (money market funds, Treasuries, competitor rate offers).
Market-cycle variation. Per-customer transfer levels vary widely with market cycles; the model holds them constant.

Planning estimates, not projections of any specific institution's experience. This is a directional model that applies published research to call report data with user-controlled assumptions. Institution data is sourced from FDIC BankFind Suite (banks) and NCUA Quarterly Call Report Data (credit unions).

Run this with your own transaction data

This model applies published research to call report totals. Your core and debit-card data can show the actual flows. In NCA's 2026 survey, 76% of crypto holders said they want to buy, hold, and manage digital assets through their bank. That's the same activity this tool measures leaving.

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Sources & Methodology

Every default in this model traces to a published source or is labeled a planning assumption. Here is where each number comes from.

Sources

  • KlariVis, "The Quiet Spread" white paper and companion article (2026). Transaction-level analysis of 226,000 Coinbase-related transactions across 92 community banks: 9 in 10 of the banks studied had customers actively transacting with crypto exchanges; $2.77 left for every $1 that returned; and 96.3% of crypto transaction volume linked to money market accounts was outbound. Read the article.
  • Cornerstone Advisors, "Stemming the Deposit Outflow: The $2 Trillion Investing Opportunity for Banks and Credit Unions" (July 2025, commissioned by InvestiFi). Estimates community banks and credit unions have lost $2.15 trillion in deposits to investment and trading platforms. Read the research.
  • National Cryptocurrency Association, 2026 State of Crypto Holders Report (Harris Poll). Roughly 1 in 4 US adults, about 67 million people, hold crypto; 76% of holders say they want to buy, hold, and manage it through their bank. Read the report.
  • Security.org, 2026 Cryptocurrency Adoption and Sentiment Report. US adult ownership rose from 27% in 2024 to 30% in 2026, informing the active-share growth default. Read the report.
  • FDIC BankFind Suite and NCUA Quarterly Call Report Data. Institution deposit totals used when you select a bank or credit union above.

Model mechanics

Estimated customers = total deposits ÷ average balance per customer. Each projection year, crypto-active customers = estimated customers × active share, where the active share grows by your chosen percentage points annually (capped at 100%). Annual net outflow = active customers × gross transfers per customer × net outflow ratio. Replacement funding cost in a given year = cumulative net outflow to date × replacement spread — the ongoing cost of carrying wholesale funding in place of the deposits that left.

Where the defaults sit

The 12% crypto-active default is deliberately below the ~25–30% adult ownership rates reported by NCA and Security.org, because owning crypto and routing monthly exchange transfers through a bank account are different behaviors. The 64% net outflow ratio converts KlariVis's $2.77-out-per-$1-back finding into a retention figure (1 − 1/2.77 ≈ 0.64). The $3,000 gross transfer default and the 250 bps replacement spread are planning assumptions. Both are fully adjustable, and the sensitivity table shows how the result moves across the plausible range.

Measure it with your own data

Talk to our team about running this analysis against your institution's actual transaction data, and how regulated institutions offer Bitcoin services through their existing core.

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