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REGULATORY MATTERS (Tables)

12 Months Ended

Dec. 31, 2021

REGULATORY MATTERS

Schedule of capital ratios and amounts

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​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	For capital adequacy				​	To be well-capitalized
​	​	​	​	​	​	​	For capital adequacy				​	purposes plus Capital				​	under prompt
​	​	Actual				​	purposes				​	Conservation Buffer				​	corrective action
(000’s omitted)		Amount			Ratio		Amount			Ratio		Amount			Ratio		Amount			Ratio
Community Bank System, Inc.:		​					​					​					​				​
2021		​					​					​					​				​
Tier 1 Leverage ratio	​	$	1,331,368		9.09	%	$	585,594		4.00	%	​	​		​	​	$	731,993		5.00	%
Tier 1 risk-based capital	​		1,331,368		18.60	%		429,559		6.00	%	$	608,542		8.50	%	​	572,746		8.00	%
Total risk-based capital	​		1,380,458		19.28	%		572,746		8.00	%		751,729		10.50	%	​	715,932		10.00	%
Common equity tier 1 capital	​		1,331,259		18.60	%		322,169		4.50	%		501,152		7.00	%	​	465,356		6.50	%
2020	​		​			​		​			​		​				​	​			​
Tier 1 Leverage ratio	​	$	1,314,864		10.16	%	$	517,736		4.00	%	​	​		​	​	$	647,169		5.00	%
Tier 1 risk-based capital	​		1,314,864		18.99	%		415,472		6.00	%	$	588,585		8.50	%	​	553,962		8.00	%
Total risk-based capital	​		1,375,704		19.87	%		553,962		8.00	%		727,075		10.50	%	​	692,453		10.00	%
Common equity tier 1 capital	​		1,239,754		17.90	%		311,604		4.50	%		484,717		7.00	%	​	450,094		6.50	%
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Community Bank, N.A.:	​					​					​						​				​
2021	​					​					​						​				​
Tier 1 Leverage ratio	​	$	1,058,091		7.26	%	$	582,631		4.00	%	​	​		​	​	$	728,289		5.00	%
Tier 1 risk-based capital	​		1,058,091		14.92	%		425,393		6.00	%	$	602,640		8.50	%	​	567,190		8.00	%
Total risk-based capital	​		1,107,181		15.62	%		567,190		8.00	%		744,437		10.50	%	​	708,988		10.00	%
Common equity tier 1 capital	​		1,057,982		14.92	%		319,045		4.50	%		496,292		7.00	%	​	460,842		6.50	%
2020	​		​			​		​			​						​	​			​
Tier 1 Leverage ratio	​	$	1,028,285		7.98	%	$	515,552		4.00	%	​	​		​	​	$	644,440		5.00	%
Tier 1 risk-based capital	​		1,028,285		14.98	%		411,880		6.00	%	$	583,497		8.50	%	​	549,174		8.00	%
Total risk-based capital	​		1,089,125		15.87	%		549,174		8.00	%		720,791		10.50	%	​	686,467		10.00	%
Common equity tier 1 capital	​		1,028,175		14.98	%		308,910		4.50	%		480,527		7.00	%	​	446,204		6.50	%

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- References

No definition available.

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- Definition

Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826

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